Current meter based on ESP-12E and LTC4150

Victor Chew made a simple current meter based on ESP-12E, LTC-4150 and SSD1306 OLED module that measure the average current draw of a variable load accurately:

The meter is powered by the micro-USB port on the ESP-12E. I soldered header pins onto the IN and OUT terminals of the LTC-4150. The whole idea is that one could plug the source battery into the IN terminals, and plug the circuit to be tested into the OUT terminals, press the “Reset” (RST) button on the ESP-12E, and it will start measuring the average current draw of the circuit.

Project info at www.randseq.org. Source code can be found on GitHub.

from Dangerous Prototypes https://ift.tt/2CMB9tb

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